cover
Contact Name
Saprizal Hadisaputra
Contact Email
rizal@unram.ac.id
Phone
+6287738066422
Journal Mail Official
pijarmipa@unram.ac.id
Editorial Address
Univesitas Mataram. Jalan Majapahit No 62 Mataram, Lombok, NTB. 83125. Indonesia
Location
Kota mataram,
Nusa tenggara barat
INDONESIA
Jurnal Pijar MIPA
Published by Universitas Mataram
ISSN : 19071744     EISSN : 24601500     DOI : -
Core Subject : Science, Education,
Jurnal Pijar MIPA (e-ISSN: 2460-1500 & p-ISSN: 1907-1744) is an open-access scientific periodical journal published by the Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA publishes original articles on current issues and trends in mathematics-science-science education studies. In addition, this journal addresses issues concerning environmental education and environmental science. The journal scopes are: a. Physics and Physics Education b. Chemistry and Chemistry Education c. Biology and Biology Education d. Natural Science and Science Education e. Mathematics and Mathematics Education f. Environmental and Environmental Education
Arjuna Subject : Umum - Umum
Articles 30 Documents
Search results for , issue "Vol. 19 No. 3 (2024): May 2024" : 30 Documents clear
Formulation and Physical Quality Test of Body Lotion of Averrhoa bilimbi L. Extract as Anti-Mosquito Agent for Aedes aegypti Eryani, Farica; Miryati, Nanda Riztina; Faulatun, Ike Afni; Gifari, M. Arya; Ramadhan, Fajri; Handayani, Sri Seno
Jurnal Pijar Mipa Vol. 19 No. 3 (2024): May 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i3.6438

Abstract

Mosquitoes are one of the vectors with a high disease spread compared to several other types of insects. Making a body lotion from Averrhoa bilimbi L. leaf extract is an effort to reduce the spread of Aedes aegypti mosquitoes. Averrhoa bilimbi L. leaves contain secondary metabolite compounds that can be utilized as natural repellants. This study aimed to test the phytochemical compounds, physical quality and repellant power of the body lotion formula of the Averrhoa bilimbi L. leaf extract. The test results showed that the lotion preparation was stable in organoleptic observation and homogeneity test. Repellant activity against Aedes aegypti mosquitoes was conducted for 5 hours. The highest protection power of lotion with Averrhoa bilimbi L. leaf extract was obtained at 76.92% at 4% extract concentration from three formulas.
Distance Learning Experience: Unleashing the Power of Peardeck for Post-Pandemic Education Roqobih, Fikky Dian; Astriani, Dyah
Jurnal Pijar Mipa Vol. 19 No. 3 (2024): May 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i3.6463

Abstract

Pear Deck is one of the tools for presenting web-based online slides. This research was implemented on 26 preservice science teachers who have heterogeneous thinking skills. This research examined the improvement of preservice science teachers’ learning outcomes through interactive online learning using Pear Deck after the pandemic era. The instruments used were written tests that were given twice before and after learning. This research was a pre-experimental design including pre-test and post-test design. Data earned was then analysed using an N-gain score and paired t-test but normality and homogeneity test was conducted before it. Data is said to be normally distributed if the Lcount < Ltab, and is said to be homogeneous if the Fcount < Ftab. There was a significant difference between learning outcomes before and after treatment if tcount < ttab. with α = 0,05. Learning with Pear Deck increases the average preservice science teacher’s score. the data were normally distributed, and then a homogeneity test was conducted with the result Fcount = 1,204 and Ftable = 1,955. Which means that Fcount < Ftable. The data were stated as homogenous. Pear Deck has a significant effect on the improvement of preservice science teacher’s learning outcomes. This is proven by the majority of students having high N-gain scores through their improvement on their test before (pretest) and after (posttest) learning. 77,78% of preservice science teacher also belonged to moderate-high increases in their scores. Results of the T-test concluded that tcount=23,10>ttable=2,06 means that H0 was rejected. So, the use of Pear Deck in distance learning had a significant effect on improving preservice science teacher’s learning outcomes.
The Effect of Using Context-Based Learning Videos on Fluid Materials on Students Critical Thinking Ability Yulaisa, Gusni; Desnita, Desnita
Jurnal Pijar Mipa Vol. 19 No. 3 (2024): May 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i3.6510

Abstract

Starting from the learning media used in schools not being able to prepare students to think critically, using context-based learning videos is one solution to improve students' critical thinking abilities. This research aims to see the effect of context-based learning videos on fluid material on the essential thinking abilities of class XI students at SMA Negeri 5 Solok Selatan. This study uses a quasi-experiment with a posttest-only control design. The research population was all class XI IPA students at SMAN 5 Solok Selatan registered in the 2022/2023 academic year. Purposive sampling was chosen as a sampling technique, so classes XI IPA 1 and XI IPA 2 were taken as research samples. The instrument used to obtain critical thinking ability data was a written test using 8-item essay questions. Normality, homogeneity, and t-tests were used in the data analysis. The measurement results show that experimental class students (80,38) have higher critical thinking skills than the control class (70,56). Statistical analysis with the t-test shows that that tcount > ttable (3,41 > 2.006) means the working hypothesis is accepted. So, it can be concluded that using context-based learning videos on fluid material affects students' critical thinking abilities.
Forecasting Freight on Board for Gonggong Export in Batam Using Markov Chain Anggraeni, Andini Setyo; Jabnabillah, Faradiba; Reza, Widya; Cahya Wati, Dia
Jurnal Pijar Mipa Vol. 19 No. 3 (2024): May 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i3.6534

Abstract

As an archipelagic country, Indonesia has great potential in the fisheries sector. As a free trade zone, Batam is important in exporting fishery products. One of the fishery export products in Batam City is gonggong snails. It is a favorite seafood item in Riau Islands Province and has high economic value. However, previous studies focused more on the content of gonggong snails and their industrial feasibility; there has been no specific research on the analysis of gonggong snail exports in Batam City, even though gonggong snails are one of Batam City's export products. In this research, we will forecast the freight on board (FoB) value for gonggong exports in Batam City using a discrete-time Markov chain with two states: above and below the moving average. There are several types of moving averages, including simple moving averages and weighted moving averages. An initial analysis will determine the moving averages' type and duration following the Gonggong export FOB data in Batam. The data used is the Gonggong export FoB data for Batam City from January 2020 to November 2023. Based on this data, the transition probability matrix will be calculated based on the number of export transitions below and above the Weighted Moving Average 6 (WMA 6) value. Limiting probability from the Markov chain will be used to predict the long-term FOB value of fishery product exports up to steady-state conditions. It was found that steady-state conditions would be reached after 17 months, with a probability of FOB exports below WMA6 of 55.06% and FOB exports above WMA6 of 44.94%.
Implementation of Integrated Problem-Based Learning Model With Ethno Cemistry Sasambo to Improve Chemistry Literation Mutiah, Mutiah; Andayani , Yayuk; Siahaan, Jackson; Supriadi, Supriadi; Haris, Mukhtar
Jurnal Pijar Mipa Vol. 19 No. 3 (2024): May 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i3.6537

Abstract

This research aims to increase the chemistry literation of students through the Integrated Problem Based Learning Model with Ethno Chemistry Sasambo in Analytical Chemistry lecture. The subject of this research is all 86 students who are taking the Chemistry Analytical lecture. Meanwhile, the object is chemistry literation in several aspects such as content, context, competition, and attitude and the response of students toward conducting an Integrated Problem-Based Learning model with local culture in the salt production process. The research methodology used in this research is action class research in three cycles. Each cycle consists of planning, observation, and evaluation-reflection. Results of this work gained are: (1) Increase in students' chemistry literation from mid to high category that can be seen as cycle 1 is 62.8 as enough category, cycle 2 is 70.7 as enough category, and cycle three is 76.7 as high category. (2) Students' response shows that 95% of them stated that they are very interested and wanted more and vary integrated of local culture.
Zeolite Synthesis Based Silica from Saccharum officinarum L. with Black Stem Using the Hydrothermal Method Redi, Muhamad; Astuti, Intan Rizki Widya; Ramadhani, Restu Agung; Sopiana, Baiq Nova; Adhya, Farhana Nida ul; Nikmah, Hidayatun; Sudirman, Sudirman; Ningsih, Baiq Nila Sari
Jurnal Pijar Mipa Vol. 19 No. 3 (2024): May 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i3.6541

Abstract

Saccharum officinarum L. has a high amount of silica content, which can be used as the main component of zeolite synthesis. Silica was isolated from Saccharum officinarum L. bagasse with NaOH and HCl. This research aims to synthesize zeolite using silica from Saccharum officinarum L. with black stem and alumina from aluminium foil. The Saccharum officinarum L. used in this research was sourced from Lombok Island, West Nusa Tenggara Province, Indonesia. Silica was sourced from Saccharum officinarum L. using the sol-gel method. The silica from the isolation of dregs ash obtained 20 g of silica with a high percentage (yield) of 50%. This study found that 5.29 g of aluminium foil produced 14.29 g of alumina with the addition of 22.50 g of Na2CO3. The zeolite obtained was 3.88 g with a SiO2:Al2O3 ratio of 5:3. From this study, the percent (%) of obtained zeolite was 48.5% from the weight of the silica and alumina produced. The zeolite results synthesized from Saccharum officinarum L.  ash were characterized using FTIR. Based on the FTIR results, absorption was found at wave numbers (cm-1) 960, 729, and 668. The zeolite obtained was pure white and had a FTIR spectrum similar to that of Zeolite X from previous research. It can be predicted that the zeolite obtained from this research has been formed. This research is expected to be useful in increasing the effectiveness of the silica extraction process from Saccharum officinarum L. with black stem. Further analysis using XRD and SEM is needed to determine the characteristics of the zeolite produced.
Application of Contextual Teaching and Learning Model to Improve Disposition and Creative Thinking Skills of High School Students Puji, Evilya Suraning; Sukarso, AA; Merta, I Wayan
Jurnal Pijar Mipa Vol. 19 No. 3 (2024): May 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i3.6551

Abstract

Facing the challenges of the 21st century, learning must be able to produce learners into creative individuals to solve problems. The ability to think creatively is closely related to a person's character or creative habits; good character can trigger good skills. This study aims to determine how applying the Contextual Teaching and Learning (CTL) model improves students' creative disposition and creative thinking skills. The method in the form of Quasi-Experimental Design uses Pre-test and post-test control Group Design on as many as 64 X students at one of Aikmel State High Schools, NTB. The 32-person experimental class used the CTL model of the guided inquiry method, and the 32-person control class of the discussion method. Data on students' creative dispositions were collected using creative disposition questionnaires given before and after good treatment in both groups. Data on students' creative thinking skills were collected with a creative thinking skills test developed referring to the Torrance Creative test. The data were obtained and analyzed using the t-test to determine the comparison of the two classes and the N-gain test to see the improvement in each class. The results showed significant differences in creative disposition and creative thinking skills between the experimental class and the control class. Increased creative disposition in the experimental class with an N-gain of 0.45 means an increase in the medium category and an N-gain of 0.08 in the control class, which means an increase in the low category. Meanwhile, the creative thinking skills of experimental class students amounted to an N-gain of 0.48, which means there was an increase in the medium category, and an N-gain of 0.05 in the control class, which means there was an increase in low theory. This study concludes that applying the CTL model can improve creative disposition and thinking skills.
The Potential of Burkholderia sp. from Zea mays Roots as Plant Growth Promoting Rhizobacteria Mustami, Muh. Khalifah; Hafsan, Hafsan; Asri, Asri
Jurnal Pijar Mipa Vol. 19 No. 3 (2024): May 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i3.6554

Abstract

Plant Growth-Promoting Rhizobacteria (PGPR) plays a crucial role in enhancing plant health, while Burkholderia sp. has been identified and has potential as a promising PGPR for maize plants. Recognizing the essential role of PGPR in plant health, this study explores how L-TRP addition might improve PGPR performance for better plant growth. Employing a completely randomized design, the study assesses the effects of Burkholderia sp. as PGPR on maize growth across three treatment groups: PGPR with L-TRP, PGPR without L-TRP, and a control group. The evaluation focuses on plant growth metrics, plant hormone production (auxin and gibberellin), and siderophore activity to gauge plant iron availability. Statistical analysis highlights that L-TRP supplementation notably increases auxin production in the PGPR + L-TRP group, surpassing the PGPR without L-TRP and control groups. Although both PGPR treatments elevate gibberellin levels compared to the control, auxin increase is the most significant outcome, indicating no substantial difference in gibberellin levels between the two PGPR groups. Enhanced siderophore production suggests improved iron assimilation for plants. The findings demonstrate that L-TRP supplementation with PGPR, particularly Burkholderia sp., effectively boosts maize growth, primarily through increased auxin and siderophore production. This combination presents a promising strategy for augmenting agricultural yields, especially for maize productivity, by leveraging the synergistic effects of soil microbes and nutrient supplementation.
Science Fun Learning for the Students Affected of Natural Disasters Kismiati, Dyah Aniza
Jurnal Pijar Mipa Vol. 19 No. 3 (2024): May 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i3.6581

Abstract

Fun learning will attract students to classroom learning activities learning, especially for victims of natural disasters. Students who experience natural disasters fear doing various things at home and outside the home (school). This study aims to find out whether fun science learning carried out by planting plants can improve students' understanding of learning science. This quantitative descriptive research uses test instruments to measure students' knowledge of family medicinal plant material. The population in this study was elementary school students who were victims of the earthquake natural disaster earthquake in 2022, while the research sample was 15 elementary school students. This sampling is done randomly. The data obtained were analyzed descriptively to determine improved student understanding of learning science. The results of data analysis showed that science fun learning applied through outdoor learning activities by planting family medicinal plants can increase students' understanding related to science material. However, the improvement is categorized as low based on the N-gain score 0.2. The recommendation of this study is to improve student understanding of when fun science learning should be supplemented with other methods by referring to the local wisdom of participants. Thus, the feeling of trauma that saddens the survivors will be slightly forgotten with fun activities and education.
Model Based Clustering for Regency/City Grouping Based on Community Welfare Indicators in North Sumatra Hasibuan, Muhammad Afif Fauzi; Cipta, Hendra; Dur, Sajaratud
Jurnal Pijar Mipa Vol. 19 No. 3 (2024): May 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i3.6595

Abstract

This thesis aims to apply model-based clustering in grouping regencies/cities in North Sumatra based on Community Welfare Indicators to determine the number of groups (clusters) formed based on community welfare indicators in regencies/cities in North Sumatra and to understand the level of community welfare from this grouping in planning and managing community welfare in regencies/cities in North Sumatra, with the hope of achieving equal welfare in every region. The research method used is Model-Based Clustering, which uses 5 research data variables: HDI, Poor Population, Unemployment Rate, GDP, and Health. In this millennial era, the assessment of community welfare requires more attention. Rapid social, technological, and environmental changes have created new dynamics that can affect community welfare. The evaluation of community welfare is not only limited to economic parameters but also considers health, unemployment, and other factors. By using Model-Based Clustering, it is possible to determine the optimal number of groups (clusters) from various and possibly correlated variables, and the results are easier to understand, making the analysis and understanding of the results easier. Readers can learn about the level of community welfare, and the community and government can evaluate their welfare for future improvements. The research results show that among the groups of regencies/cities formed, five cities consistently show lower Gross Regional Domestic Product (GDP) and Human Development Index (HDI) than other cities. Therefore, a sustainable approach is needed to improve these cities' economic conditions and social welfare.

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